Question:
Two galvanometers 'G1' and 'G2' require 2 mA and 3 mA respectively to produce the same deflection. Then
Two galvanometers 'G1' and 'G2' require 2 mA and 3 mA respectively to produce the same deflection. Then
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In comparing the sensitivity of two instruments, the one requiring less current for the same deflection is more sensitive.
Updated On: Jan 26, 2026
- G1 and G2 are equally sensitive
- G1 is more sensitive than G2.
- G1 is less sensitive than G2.
- Sensitivity of G2 is \( \frac{3}{2} \) times that of G1.
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The Correct Option is B
Solution and Explanation
Step 1: Understanding Sensitivity.
Sensitivity of a galvanometer is defined as the amount of current required to produce a unit deflection. The lower the current required, the more sensitive the galvanometer is.
Step 2: Comparing the Galvanometers.
- G1 requires 2 mA to produce a deflection. - G2 requires 3 mA to produce the same deflection. Since G1 requires a smaller current, it is more sensitive.
Step 3: Conclusion.
Therefore, G1 is more sensitive than G2, which makes option (B) the correct answer.
Sensitivity of a galvanometer is defined as the amount of current required to produce a unit deflection. The lower the current required, the more sensitive the galvanometer is.
Step 2: Comparing the Galvanometers.
- G1 requires 2 mA to produce a deflection. - G2 requires 3 mA to produce the same deflection. Since G1 requires a smaller current, it is more sensitive.
Step 3: Conclusion.
Therefore, G1 is more sensitive than G2, which makes option (B) the correct answer.
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